<template>
  <div id="box">
    <h1>{{content}}</h1>
    <input
      type="text"
      v-model="content"
    >
    <button>点击</button>
  </div>
</template>

<script>
export default {
  data () {
    return {
      content: 'test'
    }
  }
}
</script>
